Study on spectroscopy of two flavonyl glycosides from Andrographis paniculata |
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Authors: | Xiuhua Ren Guang Du Bingfeng Zhou Kai Zong Baoxia Ma |
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Institution: | (1) Tongji Hospital of Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, China;(2) Hejiang Jingxin Pharmaceutical Co., Ltd., Xinchang, China |
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Abstract: | To study the bioactive constituents from Andrographis paniculata, two compounds were isolated and purified by column chromatography on AB-8 macro-porous adsorption resin and polyamide. Their
structures were determined by various spectroscopic methods, including UV, FABMS, 1H-NMR, 13C-NMR, DQFCOSY, TOCSY, HMQC, HMBC, and NOESY. The 1H-NMR and 13C-NMR signals of the two compounds were assigned. The structures of the two compounds were elucidated as 5,4′-dihydroxy-7-methoxyflavone-6-yl-β-D-glucopyranoside and 5,4′-dihydroxy-7-methoxyflavone-8-yl-β-Dglucopyranoside, respectively.
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Translated from Acta Chimica Sinica, 2007, 65(14): 1399–1402 译自: 化学学报] |
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Keywords: | Andrographis paniculata 5 4′ -dihydroxy-7-methoxyflavone-6-yl-β -D-glucopyranoside 5 4′ -dihydroxy-7-methoxyflavone-8-yl-β -D-glucopyranoside NMR structure analysis |
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